YOKOGAWA UP35A - Page 159

9-4
IM 05P02D41-01EN
Segmenttimeduringramp-downoperations
When the target setpoint of the current segment is lower than that of the last segment,
ramp-down operations are performed for the current segment.
During ramp-down, the amount of change (between target setpoints) per hour or per
minute is set with the ramp time parameter TM.RM.
TM.RT
PV
Time
Target setpoint of last segment
(Start target setpoint if
program just started)
Segment-n
operation
Final target setpoint：TSP
n=1 to 20 (40 when the option
“/AP” is specified.)
SettingDetails
Parameter
symbol
Name
Display
level
Settingrange Menusymbol
TSP
Final target
setpoint
EASY
0.0 to 100.0% of PV input range
(EU) (Setting range: P.RL to P.RH)
PROG
TM.RT
Segment ramp-
rate setting
EASY
-: Unregistered
Ramp: 0.0 to 100.0% of PV input
range span (EUS) / 1 hour or 1
minute
Soak: 0.00 to 999.59 (“hour.
minute” or “minute.second”)
If it is set to 0.0% of the input range span, or the segment time 0.00, the program moves
to the next segment after one control period.
Use the parameter TMU to set the time unit. (Common in the instrument.)
When setting the program pattern via communication, set the time in minutes when the
time unit is set to hour.minute and set the time in seconds when the time unit is set to
minute.second.
9.1SettingtheSettingMethodofProgramPattern